Automatic gas-regulator and cut-off.



No. 8216.947 PATENTED MAR. 12, 1907, A. D. PURTLE L 1. E. Row/LAND.

AUTOMATIC GAS REGULATOR AND CUT-OPF. APPLICATION F'ILBD DEG. zo, 1906.

2 SHEETS-SHEET 1.

No. 846,947. PATBNTED MAR. 12, 1907. A. D. PURTLE & I. E. ROWLAND.

AUTOMATIC GAS REGULATOR AND CUT-OFF. l

APPLICATION FILED DBG. Z0, 1906.

2 SHEETS-SHEET 2.

A TTORNE ys invention consists of certain novel features UNTTED STATES PATENT ortion.

ALBERT PURTLE AND IRVEN E. ROWLAND, OF SALEM, WEST VIRGINIA.

e AUTOMATIC' GAS-REGULATOR ANDy CUT-OFF.

Specication of Letters Patent.

' parentela Marci; 12,1907.

Application tiled December 20,1906. Serial llo. 348,786. T

To a/ZZwh/om it may con/cern): l Be it known that we, ALBERT D. PURTLE and IRVEN E. Rowman), citiz'ens of the United States, residin at Salem, in the county of Harrison an State of West Vir-` gima,

simple form of regulator which can be ad' justed. to maintainthe gas-pressure at a desired degreej and which in the event of the sto page of the-flow of'gas will automatica ly cut off any subsequent flow which may occur.

With these and other objects in view the of construction and combinations of parts, which will be hereinafter more fully described, and pointed out inthe claims.

In the accompanying drawings is, shown the. preferred form of the invention.4

In said drawings, F' tion through the comp ete device. Fig. 2 is a section on line a; m, Fig. 1; and Fig. 3 isa perspective view of the intermediate orbody portion of thedevice.-

Referr' o' to thegures by characters of reference, is the body or the intermediate ortion of the device, the same consisting of ongitudinal a 1, formed 'with circular heads 2, the lower one' of which has a circular flange 3 outstanding therefrom and provided w1th a reduced externally-screw-threaded' extension 4. This extension projects into engagement with the wall of an opening 5, formed in the upper face of a valve-Casin B. This casing has a .partition 6 therein, su dividing it into an inlet-compartment 7 and an outlet-compartment 8, and an inlet-pipe 9 opens into compartment 7, While av gas-cuff let pipe 10-extends from the compartment 8.

sls-

A tube 11 is screwed into an open formed Within the partition 6, and b'oth en s of this tube are flared to form seats 12 and 13. A screw-plug 14 serves to close an opening 15, which is formed in the bottom ofthe casing B, the upper or inner face of this plug being recessed, as shown at'16.

`plate is a cap ulators land Cut-OHS; of which by a valve ure 1 is a verticalsec-- the stem substantially semis Secured upon the upper end of the body 1 in any desired manner, as by means of screws e l 17, is abottom plate 18, surrounded by an annular flange 19, and arranged above this 20, which is also surrounded by an annular flange 21. adapted to be boltedtogether. and to clamp upon the margin of a flexible diaphragm 22,

The two flanges are' which serves to subdivide the space between the bottom plate 18 and cap 20 into an upper compartment 23 and a lower compartment 24. A vent 25 is formed in the plate 18, and an outlet 26 is formed within the 'cap 20. Secured within this outlet is a tubular casing 27, having a vent 28 therein. The inner or reduced end of-this casing is normally closed 29, having a stern 30, which is screw-threaded and on which is adjustably mounted a combined nut and guide 31. A coiled'spring 32 bears at one end on this nut and at its other end against acap 33, which.

is screwed upon the casing 27. By means of 'this cap and the nut y31v the tension ofthe spring 32 can be increased or diminished, so that the valve 29 will be heldto its seat with any desired pressure. 'Y

Extendin tube 34, Within the lower end of which is secured a stem 35,' which extends through tube 11, anda valve 36, adapted to bear upon the upper seat 12. Secured to the lower end of herical valve 38, preferably formed of so t rubber.

upon the seat 13. The upper end of the tube 34 lsthreaded through the center of a disk 39, which extends under the greater' ortion of the diaphragm 22, and has a circu ar groove 40 adjacent the center thereof, into which the diaphragm is pressed by means of a cap 41Which is secured onto the end of the tube 34. This cap has a small opening 42 therein, disposed directly' above thel passage within the tube 34. A clip 43 embraces the central portion of tube 34 and has outstanding ears This valve isadapted whenthe stem 35 is raised to 'bear' longitudinally through the l body-A an movably-mounted therein is a 35 is a cup 37', infwhich is secured a A Y 44, connected by a pivot-pin 45. The clip is y between ears 51, outstanding from said arm.

y weight 52 is adjustably mounted on the leupon a pin 50, disposed ver 48. It will be noted that both ofthe arms l are rovided with vslots 49 and ears 51, so that thellevers 45,4 can be extended through either of them to suit various conditions and tastes. It is of course understood that the weight 52, bearing downward on the outer end of Vlever 48, serves to hold the valve 38 normally upon its seat 13. The iiow ofgas from pipe 9 to pipe 10 is therefore cut ofi.

When it is desired to start the flow of gas, the Weight 52 is raised s'o as tocause the tube 34 to move downward. As soon as the valve 38 leaves its seat gas will rush' through the tube 151 and into the compartment 8, from which a portion will escape into the tube 34 through -an' inlet 53.

portion of the gas to escape through the vent pressure ofi the 28. `Obviously by adjusting the weight 52 toward the i'ulcrum of' lever 48 the pressure 'of the gas may be reduced, because less pressure will be required to keep the valve 38 awayvfrom its seat 12. However, by moving the weight 52 further awa from the fulcrum 50 the pressure require to maintain the valve 38 will be increased. the flow'of gas within the pipe 9 should be cut oil" or stopped, the downward pressure of the gas uponthe diaphragm 22 would cease, and therefore the wei hted lever-'48 would romlptly throw the va hou dfthe flow of gas within pi e9 be restablished, it will be impossible ildr it to pass into the outlet-pi e 10, because the valve38 will remainseate The only way to` restart the flow would be to rst raise the lever 48 so as to move 'valve 38 downward. It will be seen that this device is a very simple and inexpensive construction, and by incorporating it in as-distributin systems there will be absolute sequent starting of the flow of gas. The gas can be automatically maintained at a desired degree -to suit the wishes of the'consumer.

A, fThe, preferredv form of the invention has been lset forth in the foregoing description; lbut we do not limit ourselves thereto, as we are aware that modifications may be made ytherein Without departing from the spirit or sacrificing the advantages thereof, and we therefore reserve the right to make such changes as fairly fall within the'scope of the claims4 f1., i

From this 'tube 'the gas will pass into the upper compartment 23, located` If for-any reason ve 38 against seat-13."

y no danger o asphyxiation result` mg' from the inadvertent stoppage and thel su flowof fluid through LA device of the characterl described comprising a valve-casing, a tube slidably mounted therein and opening thereinto, a

valve immovably connected to and movablel valve toward its seat and against the pressureiof said yielding mea s.

2..A device of the character described comprising -a valve-casing, a tube slidably mounted thereinand openin r theremto, a

g valve outside of and immova ly connected to and movable with said tube, connected to the tube, holding the valve normala diaphram removed: from its seat, means for directing uid under pressure through the tube and onto the diaphragm to move the valve toward its Iseat and agalnst the pressure of said yielding means, and a cut-off valve movable with the rst-men-` tioned valve for automatically stopping the the casing when pressure is removed from the diaphragm.

yielding means lor 3.v In a device of the character described I,

the combination'v with a valve therein; of a tube immovably connected to ing into the casing,

valve-'casing anda extending from and the valve and opena disk secured around the tube, a diaphravmsecured to and partly sup`l disk, yielding means for holdported by the ing the valve normally unseated, and means for directing fluid under pressure upon the diaphragm-when the valve is open .to move IOO said valve against the pressure of said yielding means'.

4. In a device of the character described the combination with a valve-casingv anda valve therein; of a tube extending from andl immovably connected to the valve ando ening into'the casing, a disk secured arouncjthe tube, a diaphragm secured. to and'partly supported by the disk, yielding means for. holding the valve normally unseated, meansfor directing iluid lunder pressure upon the diaphragm when the valve is open to move sai d valve againstv the pressure of said yielding means, andmeans for automatically relieving the diaphragm of excessive pressure-,

`5. vIn al device of the character described the combination with a valve-casing land a valve therein of a tube extending from and i mmovabl y connected to the valve and openin@ into the casing, a disk securedaround the tube, a diaphra m secured to andpartly supported by the r. isk, yielding means forholdfing the valve normally unseated, means for directing fluid under pressure upon the diaphragm when the valve is o'pen to move said valve against the pressure of` said yielding means, and adjustable means for relieving the' diaphragm of excessive pressure. i

IIO

' valve and opening into vthe casing, a disk secured around the tube, a diaphragm secured to and partly su orted by the disk, yielding means for hofdli the valve nor- Amally unseated, means for irecting fluid under pressure upon the diaphragm when the valve is open to move said valve against the pressure of said yielding means, and means movable with the valve for stoppingy the passage of Huid throul h the casing when the diacaA ied by the cup and normallyseated by- '1 mally seated by said lg a diaphragm, means j valves are open .of pressure. y

7. a device of the character described the" combination with' a valve-casing and a tube slidably mounted therein and opening thereinto, of a valve, gravity-o' erated means YJfor holding the valve normal y unseated, a

cup movablewith said valve, a e'xible valve saidr gravity-operated means, a. diaphragm, and means for directing fluid `under pressure upon the diaphragm when the valves are open to hold the valves unseated. l

8. In a device of the character described 'the combination With a valve-casing and a tube slidably mounted therein andopening v thereyiiit of a valve,. gravity-o erated means for'holding the valve lnorma ly unseat'ed, afcup movable with said valve, a flexible valve carried by the'cup and norgravity-operated means, for directing fluid under 4pressure upon the dia to hold t e valves unseated, and means for relieving the diaphragm of ex- `ce'ssive pressure. f

9. A device of the character described comprising a valve-casing, a tube slidably mounted` herein and opening thereinto, op-

positely-disposed valvesmovable with and immovably connected to the tube, a gravityoperated lever connected yto the tube for' holding one of the valves seated, a diahragm connected to the tube, and means 'or directing fiuid under pressure against the diaphragm when the valves are open to hold said lvalves from their seats.

10. In a device o f `he character described hragm When the Qcut-ofl valves movable Wit the combination with a casing and a tube movably mounted therein and opening thereinto; of oppositely-disposed re ulating and cut-oii valves movablewith t e tube and Within the casing, a Weighted lever connect'ed to the tube for holding the cut-ofi valve. normally seated, adiaphragm connected to the tube, a casing inclosing the diaphragm, said tube adapted to conduct fluid under pressure from the valve-casing to the diaphragm-casing. i 4

11. In a deviceof the character described the combination with a casing and a tube movably mounted therein and opening thereinto, of oppositely-dis osed regulatin the tube and Within the casing, a Weighted lever connected to the tube for holding the cut-0H valve normally seated, a disk secured to the tube, a casing inclosing the disk, a flexible diaphragm secured within the casing and extending over the disk, and means upon the tube for clamping the diaphragm u on the disk, said tube adapted to conduct fibid under piessure from the valve-casing to the diap agm-casing. 12. In a device of the character described the combination with a casing and a tube movably mounted thereinv and opening thereinto of oppositely-disposed regulating cut-off valves movable With the tube and Within the casing, a Weighted lever connected ,to the tube valve normally seated, a tube, a casing inclosing the disk, a flexible diaphragm, means upon the tube for clamping the diaphragm upon the disk, said tube adapted to conduct fluid under pressure from the valve-casing to the diaphragm-casing', and means for relieving the diaphragm disk secured to the of excessive pressure. y

In testimony that We claim the foregoing as our own We have hereto affixed our signatures 1n the presence of two witnesses.

ALBERT D. PURTLE. myn E. RoWLAND.

Witnesses: i

A. A. LAsHER, J. MURE.

for holding the cut-off 

